Home / 7,085-10,629.02-2,155.04

Finding the Fourth Proportional to 7,085, 10,629.02 and 2,155.04

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Solution

The fourth proportional to 7,085, 10,629.02 and 2,155.04 is: 3,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085 : 10,629.02 = 2,155.04 : x
  2. Step 2: Convert to fraction form
    7,085/10,629.02 = 2,155.04/x
  3. Step 3: Cross multiply
    7,085x = 10,629.02 × 2,155.04
  4. Step 4: Simplify right side
    7,085x = 22,905,963.26
  5. Step 5: Solve for x
    x = 22,905,963.26/7,085
  6. Step 6: Final answer
    x = 3,233.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.